Unhide LocaleList.getAdjustedDefault()

Apps/libraries/widgets that wish to display text their own way (think
WebView/Chrome) or do some resource management themselves should be
able to use LocaleList.getAdjustedDefault(), the same way we use it
in Paint and Resources.

Bug: 26988869
Change-Id: I4b6aac7adb5da15459dca92574923f33f0702433
diff --git a/api/current.txt b/api/current.txt
index a4f6607..1f31e52 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -40086,6 +40086,7 @@
     method public int describeContents();
     method public static android.util.LocaleList forLanguageTags(java.lang.String);
     method public java.util.Locale get(int);
+    method public static android.util.LocaleList getAdjustedDefault();
     method public static android.util.LocaleList getDefault();
     method public static android.util.LocaleList getEmptyLocaleList();
     method public java.util.Locale getFirstMatch(java.lang.String[]);
diff --git a/api/system-current.txt b/api/system-current.txt
index 2d5e7f6..2774dee 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -42851,6 +42851,7 @@
     method public int describeContents();
     method public static android.util.LocaleList forLanguageTags(java.lang.String);
     method public java.util.Locale get(int);
+    method public static android.util.LocaleList getAdjustedDefault();
     method public static android.util.LocaleList getDefault();
     method public static android.util.LocaleList getEmptyLocaleList();
     method public java.util.Locale getFirstMatch(java.lang.String[]);
diff --git a/api/test-current.txt b/api/test-current.txt
index dcb2f32..2219674 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -40105,6 +40105,7 @@
     method public int describeContents();
     method public static android.util.LocaleList forLanguageTags(java.lang.String);
     method public java.util.Locale get(int);
+    method public static android.util.LocaleList getAdjustedDefault();
     method public static android.util.LocaleList getDefault();
     method public static android.util.LocaleList getEmptyLocaleList();
     method public java.util.Locale getFirstMatch(java.lang.String[]);
diff --git a/core/java/android/util/LocaleList.java b/core/java/android/util/LocaleList.java
index fc39004..fa3921c 100644
--- a/core/java/android/util/LocaleList.java
+++ b/core/java/android/util/LocaleList.java
@@ -478,8 +478,6 @@
     /**
      * Returns the default locale list, adjusted by moving the default locale to its first
      * position.
-     *
-     * {@hide}
      */
     @NonNull @Size(min=1)
     public static LocaleList getAdjustedDefault() {